Richard Mark

by Edward Cates
Richard Mark
Chairman & President of Ameren Illinois Companies (AIC)
Ameren Corporation

Richard Mark is Chairman and President of Ameren Illinois Companies (AIC) for Ameren Corporation. In this role, he is responsible for electric and natural gas distribution to more than 1.2 million electric and 816,000 gas customers across three-quarters of the state of Illinois.


AIC’s complex delivery system includes: 4,600 miles of electric transmission lines; 46,000 miles of distribution lines (15% underground); 18,300 miles of natural gas transmission and distribution mains; and 12 underground natural gas storage fields.


While at St. Mary’s Hospital in East St. Louis, Mark was President and CEO for six years and spent five years as the hospital’s Chief Operating Officer. He also served 10 years as Voluntary Chairman of the East St. Louis District 189 State Financial Oversight Panel, an Illinois Governor appointed position.


Mark serves on a variety of boards and organizations, including Tenet Healthcare, American Gas Association Board, Madison Mutual Insurance Board, Leadership Council of Southwestern Illinois, Saint Louis Zoo Association, Fontbonne University, the St. Louis Police Foundation and the St. Louis Regional Business Council.


Mark holds a Bachelor of Science and a Master of Science in Business from Iowa State University.

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